* {
    padding: 0;
    margin: 0;
}

/* 设置滚动条样式 */
::-webkit-scrollbar {
    width: 7px;
    height: 7px;
    background-color: #F5F5F5;
}

::-webkit-scrollbar-track {
    -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.3);
    border-radius: 10px;
    background-color: #F5F5F5;
}

::-webkit-scrollbar-thumb {
    border-radius: 10px;
    -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, .3);
    background-color: #cbc8c6;
}

.box {
    border: 1px solid #d9d9d9;
    border-radius: 20px 20px 0 0;
    width: 850px;
    height: 600px;
    background-color: #f5f5f5;
    margin: 30px auto;
}

.left {
    border-radius: 20px 0 0 0;
    width: 250px;
    height: 100%;
    float: left;
    background-color: #e3e3e4;

}

.left > .search {
    height: 40px;
    border-bottom: 2px #e7e7e7 solid;
}

.left > .search > input {
    width: 150px;
    margin: 10px;
    outline: none;
}

.left > .chat_list {
    height: 560px;
    overflow: auto;
}

.left > .chat_list > ul {
    list-style: none;
}

.left > .chat_list > ul > li {
    line-height: 65px;
    padding-left: 50px;
    border-bottom: 1px solid blueviolet;
}

.left > .chat_list > ul > li:hover {
    background-color: #c4c3c4;
}

.right {
    margin-left: 0;
    width: 600px;
    float: left;
}

.title {
    line-height: 40px;
    border-bottom: 2px #e7e7e7 solid;
}
.title_p{
    text-indent: 30px;
    font-weight: 600;
}

.title > p{
    display: inline-block;
}

.prompt{
    float: right;
    color: red;
    font-size: 12px;
    padding-right: 20px;
    display: none;
}

.chat {
    height: 400px;
    overflow: auto;
    padding: 20px;
}

.chat > p {
    border: 1px solid #d2d2d2;
    border-radius: 10px;
    padding: 10px;
    margin: 10px;
}

.other {
    float: left;
    clear: both;
    background-color: white;
}

.me {
    float: right;
    clear: both;
    background-color: #98e165;
}

.bottom {
    clear: both;
    border-top: 2px #e7e7e7 solid;
    border-bottom: 1px #e7e7e7 solid;
    padding-top: 10px;
    box-sizing: border-box;
    background-color: #FFFFFF;
    width: 600px;
    height: 119px;
}

#user_input {
    box-sizing: border-box;
    padding: 10px;
    width: 600px;
    height: 80px;
    font-size: 16px;
    outline: none;
    resize: none;
    border: none;
}

#send_msg {
    width: 50px;
    position: relative;
    right: -90%;
    bottom: 3%;
}
